Furnace



w. J. PE/Es May 24, 19247.

FURNAGE Filed May 5. 1924 Patented May 243,1, i927.

nuire stares or iiAnviLLii, rnnnsviivaiiin;

WALTER J. sans,

FURNACE.

application flied May 3, i924. serial No. 710,784.

to furnaces or the utility of this respect.

fit the struct furnaces of the which the pres series of the het air the invention is not ent invention nd more particularly type, `although limited in present time it is customary to 'congen'eral character to relates, from a separate pieces adapted to be joined together, the joints commonly being sealed a suitable cement.

hap-

It sometimes pens that during the installation of such a furnace,

reason of an y joints are broken and of alignment.

or dui-ing the templates means adap furnaces o inforcing the parts and resi position.

ln the acco shown, for purposes of embodiment o ing undeistoo d fine the in the construction made without spirit o broader limits of the f the invent claims.

ln the drawings Figure 1 is a front elevation of a furnace eu'ibodying the present the parts olea rness,

Figure 2 is a' par view, on a smaller sc of Figure 1, and

Figure 3 i for the fire bowl.

the present invention is ada ated to lllhil e be appli is herein i hot air furnace of ed to furnaces the an ash pit 2, a lire pot and a radiator 5.

furnace,

which may standard construction,

nected by the use of joints 6 i Tn order to provide tying the sections rupture tion or ably pro er ably a tog of operation of the furnace,

vide tie rods .7 t substantially f the present that the drawings do departing ion or scope of ll ustr ated in operation thereof, by

explosion oi' otherwise, the

pushed out- The present invention con the parts ted to be applied to the respective such parts in inpanying drawings there is illustration only, one

invention, it benot deinvention as changes disclosed therein may be either from the my invention, certain of being broken away for salte of tial transverse sectional ale, on the line lI-H of different types, it combination with a character embodying 3, a choke fire bowl l The various parts of the all be substantially of are ordinarily con- 7liich may be sealed by a suitable cement.

additional means for ether to prevent any the joints either during installa- I prefersuitably located, prefopposite sides of the furnace, although it will be understoodthat any desired number orI arrangement of rods maybe employed. These tie rods may conveniently be passed through lugs 8 which are customarily provided on the radiator, 5 for cooperation with comparatively shorttie bolts 9, and at their lowerends ymay engage yolres 10. These yolres are preferably of ins verted U-shape having out-turned portions 11 ladapted to underlie and engage di erent portions of the base 152 of the` furnace. reason lof this construction, the yoltes may bel asily slipped into position through the desired openings in the base and Y at substantially right angles to bring the portions 11 into -he desired engagement with the base. Thereafter, compression springs 13 may be slipped over the ends of the rods 7, and the springs compressed to the desired degree of initial compression by nuts 14.

In order that the temper of the springs may not be impaired to an extent sutiicient to destroy their utility, there are preferably provided heat shields or guards 15 surrounding` the rods 7 and abutting at their inner sides against the sides of the asli pit 2 whereby they are effectively held in position. These shields cooperate with the yolres 10 to deflect a laige amount of heat from the springs and thereby keep the same as cool as possible.

It frequently happens during the use of furnaces of this general character that by reason of an accumulation of gas there will be a more 0r less violent explosion. This explosion is frequently responsible for the rupture of the joints 6, as pointed out. It will be apparent that where tie rods 7 are utilized, the rupture of the joints cannot occur so easily and it therefore'becomes de sirable to provide a catch for the door 1G of such construction that it may readily yield to permit the door to open and thus relieve the pressure within the furnace. This may be accomplished by forming the keeper 17 with a sloping latching surface 18 for cooperation with the latch 1.9 projecting from the door, and providing sulficient play in the pivots 20 to permit the door to tilt upwardly the required amount to allow passage of the latch over the keeper.

It will be understood that the use of coinpression springs on the tie rods enables the furnace to expand or contract as is customthen turned while at the same ary by reason of temperature changes of the different parts thereof. By varying the initial compression on the springs in ac cordance with the construction of the furnace, it is possible, however, without impairing the ability to expand and contract, to firmly hold the different sections of the furnace in the desired position.

The furnace may -be provided with the usual casing 2l through which a portion of the ash pit extends to provide a clean-out opening 22, and with a canopy hood 23 having the sides extending at such an angle that the pipes for the furnace may be installed without the use of sharp elbows.

The advantages of the present invention arise from the provision of a resilient reinforcing means for furnaces, and more particularly from the use of compression springs so mounted thatl the initial compression thereof may he Aeasily adjusted time shielding them from the intense heat of the fire pot.

I claim:

l. A furnace comprising a plurality of separable sections including a base and a radiator, a yoke Vdetachably cooperating with the base and whose cross-bar is above the base, a tie rod connected to said and extending through the cross-bar of said yoke, and an adjustable resilient connection between said yoke and said tie rod Vbetween the legs of the yoke, substantially as described.

2. In a furnace including a radiator and base, a yoke detachably connected to the base, a tie rod detachably cooperating with the `radiator and yoke, a spring carried by said tie rod and forming a resilient connection between said radiator and base, and means for shielding said spring from the heat from the furnace, substantially as described.

In testimony whereof I have hereunto set my hand.V

WALTER J. PERS.

radiator 

